// which can differ locally, fine tuning is always made // by each itself, for me it was 0.6 degrees Celsius,// that are 1,08 Fahrenheit , i round down to 1 here:uint8 calibrateCorrection = 1 ; // calibrate with an mercury thermometer

ps:the sensor shows actually in a loop stable value.if you use this for ambient room measure fast and long time, there is a litle-little self-heating. test it by yourself and you can see a little little by max 0. 1 - 0.6 °C more as you calibrated .

If you use later Wifi and other we must do this again, the reference isthe first measuring with a calibrating like here.

WiFive wrote:You have a graph of ambient temp accuracy (self-heating effect) over wider range of temperatures?

thanks for your interest and demand.

this will be the next step, the record with an overview ofambient temp"self-heating" by measuring processing SoC read procedure "self-heating" by measuring with an Infrared Thermometer and compare with read resultand last but not leastnumber of "ticks" done in this meantime of measurement.think this is still a crucial factor, when, where and which takes place a self-heating, if it should take place at all.

this ticks i try to increase with computing tasks later.next steps then measurment with other processings example wifi, bt,..

just in time, i need the modul in other developing processing because in the measurement, i can't program it with apps.the long measurement is made in the intervals and pauses when no work with it or sleep or rest.

hope we get to buy asap the module after chin. new year.think these are previously unavailable.

best wishesrudi

note:We enjoy our summer holidays 29th july to 11th september and recharge our batteries-------------------------------------love it, change it or leave it.-------------------------------------問候飛出去的朋友遍全球魯迪

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Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. ESP8266EX and ESP32 are some of our products.